Permophorus

Geological Range

Desmoinesian to Virgilian (also Permian); Extinct.

Paleogeographic Distribution

Texas to Iowa.

Stratigraphic Occurrences

Virgilian

Calhoun Shale (IA)

Deer Creek Limestone (Larsh-Burroak Shale Member) (OK)

Deer Creek Limestone (Ozawkie Limestone Member) (KS)

Emporia Limestone (OK)

Graham Formation (Wayland Shale Member) (TX)

Kanwaka Shale (Stull Shale Member) (KS)

Lawrence Formation (Haskell Limestone Member) (KS)

Oread Limestone (KS)

Oread Limestone (Toronto Limestone Member) (KS)

Stranger Formation (Iatan Limestone Member) (KS)

Stranger Formation (Vinland Shale Member) (KS)

Vamoosa Formation (OK)

Missourian

Belle City Limestone (OK)

Bonner Springs Shale (KS)

Cherryvale Shale (Westerville Limestone Member) (KS)

Dennis Limestone (Winterset Limestone Member) (KS)

Drum Limestone (KS)

Graford Formation (Brownwood Shale Member) (TX)

Plattsburg Limestone (KS)

Plattsburg Limestone (Merriam Limestone Member) (KS)

Plattsburg Limestone (Spring Hill Limestone Member) (KS)

Stanton Limestone (KS)

Stanton Limestone (Eudora Shale Member) (OK)

Stanton Limestone (Stoner Limestone Member) (KS)

Vilas Shale (KS)

Wyandotte Limestone (Farley Limestone Member) (KS)

Desmoinesian

Big Branch Formation (OK)

Calvin Sandstone (OK)

Lenapah Limestone (OK)

Wewoka Formation (OK)

Unknown Stage

Cherokee Shale (MO)

Coal Measures (KS)

Coal Measures (MO)